Cut green tomatoe in 1/4 inc slices and place on a paper towel, sprinkle with kosher salt and allow to sit until moisture comes up, blot moisture with papertowel.
In the meantime slice your onion in thin slices, drizzle olive oil on the bottom of a fry pan and cook onions on medium heat turning occasionally, once they wilt turn heat down a little and continue to cook until carmalized.
Fry your bacon in a separate pan until crisp, drain on papertowel, cut in half. Set aside. Save drippings.
Place cornmeal and cheese in a separate shallow dish add pepper and hungarian paprika, mix. In another shallow dish beat your egg.
Dip your tomatoe slices in the egg mixture and then the cornmeal mixture, set aside on a papertowel or dish. Continue process until all your slices are breaded.
Fry each breaded tomatoe slice in your bacon grease for 2 to 3 minutes and drain.
Place a sheet of foil on a cookie sheet, place your bread slices on the cookie sheet and layer 3 slices with 2 slices of fried tomatoe, top with one bacon strip cut in half, top with 1 slice of cheese.
Broil 3 inches from broiler until cheese is melted, remove and top with your carmalized onions, lettuce, peppers, and on the other slice spread your mayo and mustard. Enjoy